litellm/litellm-rust/crates/secrets/PARITY.md

Python secret-manager test parity

The inventory covers 132 tests in the secret-manager suites and the legacy secret-manager utility suites. It maps 108 tests to Rust coverage and identifies 24 tests owned by other layers or live environments. Rust tests exercise requests, returned values, caching, routing and failure behavior. Multiple Python tests can map to one parameterized Rust test

Tests of Python extension lifecycle, SDK credential selection in auth-azure, proxy hooks and example subclasses remain at their owning boundary. They are called out below rather than counted as Rust secret-manager coverage. Default AWS partition endpoints are owned by the AWS SDK

Azure callback absence remains None, while a native HTTP 404 still permits environment fallback. azure_callback_absence_preserves_none_but_errors_fall_back and python_read_failures_preserve_provider_fallback_rules cover these distinct results

Native APIs preserve typed errors and explicit absence. Python-compatible reads restore Python fallback, coercion, Google negative caching and missing-value behavior. Vault namespaces use the SDK namespace header instead of Python’s equivalent URL prefix. Rotation verifies fresh provider reads instead of trusting a just-written cache entry, preventing deletion after a failed replacement

Google payload corruption is intentionally rejected: malformed base64 and mismatched CRC32C values fail without populating the cache. failed_or_missing_reads_are_not_cached tests this correction against Python's permissive decoder and omitted checksum validation. See RFC 4648 section 3.3 and Google's integrity guidance

The Python API audit found that earlier AWS fallback tests encoded the wrong expectation. Differential calls to the existing handler show that missing secrets, denied reads, missing string payloads, and missing or empty primary secrets return None; they do not activate environment fallback or defaults. test_aws_absence_and_failed_reads_match_python_without_environment_fallback compares the public getter under both dispatch decisions, including HTTP 500 responses and their exact request counts. Python-compatible AWS reads disable SDK retries, matching Python's single attempt for service errors while retaining the native API's retry configuration. The bridge resolver test aws_read_failure_preserves_absence_without_environment_fallback checks the same rule when environment values exist. test_aws_primary_values_match_python_handler checks typed values, including arbitrary-size integers. test_aws_primary_json_errors_preserve_python_exception_details checks the exception class, arguments, document, and position against Python

Public AWS, Vault, CyberArk, and Google read methods now use catalog selection. AWS, Vault, and CyberArk keep their Python coroutine entrypoints, while Rust receives provider operation contexts. Full API replacement remains incomplete: AWS write/delete/rotation methods still need native bindings. Vault and CyberArk mutations now use native dispatch and share their native read caches. SDK-client configuration capture also needs to preserve explicit credentials, endpoints, and regions. Timeout phase handling, AWS optional-parameter side effects, per-call region selection without a base region, and environment lookup timing need further parity work. The private binding returns a Future, while the public methods retain ordinary Python coroutines as verified by lazy execution and asyncio.create_task tests. This follows the separation described in the PyO3 signature and async guides. The catalog remains Python-only while these gaps are open

Public API audit

The rollout decision comes from catalog.py. All secret-manager rules remain PYTHON_ONLY; LITELLM_RUST does not make these incomplete routes production-ready. Differential tests pass explicit rules into the dispatch boundary

Python entrypoint	Native bridge coverage	Remaining API work
litellm.get_secret, get_secret_str, get_secret_bool	Existing Python entrypoints dispatch supported manager reads	SDK-client configuration, environment read timing and complete failure conversion
AWS sync_read_secret, async_read_secret, primary-secret helpers	Public signatures and coroutines retained; credentials, absence and typed JSON tested	Option consumption, timeout phases and region resolution
AWS async_write_secret, async_delete_secret, async_rotate_secret, async_replicate_secret, async_put_secret_value	Rust provider operations exist	Public native dispatch, original response fields and Python error contracts
Vault sync_read_secret, async_read_secret	Public signatures, nested overrides, namespace and data-key cache isolation tested	Complete timeout and initialization error parity
Vault async_write_secret, async_delete_secret, async_rotate_secret	Public native dispatch, complete response envelopes, HTTP error dictionaries, timeouts and fresh verification tested	Authentication and input-conversion edge cases, transport retries, timeout phases and mutable configuration read points
CyberArk reads, writes, deletes and rotations	Public native dispatch, shared cache, coroutine behavior, status errors and request counts tested	Other transport failures and client initialization timing
Google get_secret_from_google_secret_manager	Public native dispatch and distinct initial/cached missing results	Credential configuration and complete error parity
Azure Key Vault, AWS KMS, Google KMS SDK clients	Global secret-handler dispatch supports recognized clients	Explicit SDK credentials, endpoints, regions and caller-supplied credentials
Custom managers and subclasses	Preserve Python callbacks	Caller implementations must never be replaced by built-in native managers

_SecretManagerRuntime is a private implementation detail, not a replacement SDK class. Its async methods return Futures; public async def methods retain lazy coroutine creation and asyncio.create_task support. Passing the same names and arguments is insufficient to claim parity until the remaining return-value, error, cache and configuration differences above are closed

tests/test_litellm/secret_managers/test_aws_secret_manager_replication.py

Python test	Rust coverage or boundary
test_write_secret_replicates_when_configured	creation_replicates_only_to_configured_regions
test_write_secret_no_replication_when_not_configured	creation_replicates_only_to_configured_regions
test_replication_failure_does_not_fail_write	creation_passes_tags_and_kms_and_survives_replication_failure
test_async_replicate_secret_empty_regions_returns_empty	creation_passes_tags_and_kms_and_survives_replication_failure
test_async_replicate_secret_correct_payload	direct_replication_returns_response_or_service_error
test_replication_fires_on_create	creation_replicates_only_to_configured_regions
test_load_aws_secret_manager_passes_replica_regions	creation_replicates_only_to_configured_regions
test_write_secret_http_error_raises	create_failure_does_not_overwrite_an_alias_without_a_deletion_date
test_write_secret_timeout_raises	write_and_replication_timeouts_remain_errors
test_replicate_secret_http_error_raises	direct_replication_returns_response_or_service_error
test_replicate_secret_timeout_raises	write_and_replication_timeouts_remain_errors

tests/test_litellm/secret_managers/test_aws_secret_manager_rotation.py

Python test	Rust coverage or boundary
test_rotate_secret_same_name_writes_requested_value_in_place	same_name_rotation_uses_put_and_returns_its_response
test_rotate_secret_different_names_persists_requested_value_and_deletes_old_alias	renamed_rotation_reads_creates_verifies_then_deletes
test_rotate_secret_back_to_name_inside_recovery_window_restores_and_stores_new_value	recovery_window_alias_is_restored_updated_and_tagged
test_write_secret_to_name_inside_recovery_window_reschedules_deletion_when_update_fails	failed_update_reschedules_deletion_of_a_restored_alias
test_write_secret_to_name_inside_recovery_window_restores_and_stores_new_value	recovery_window_alias_is_restored_updated_and_tagged
test_write_secret_to_live_existing_name_still_fails_without_overwriting	create_failure_does_not_overwrite_an_alias_without_a_deletion_date

tests/test_litellm/secret_managers/test_aws_secret_manager_v2.py

Python test	Rust coverage or boundary
test_create_secret_uses_customer_managed_kms_key_from_settings	creation_replicates_only_to_configured_regions
test_create_secret_omits_kms_key_id_when_not_configured	write_read_delete_preserves_the_complete_secret_string
test_write_and_read_json_secret	write_read_delete_preserves_the_complete_secret_string
test_prepare_request_builds_partition_endpoint	AWS SDK owns partition endpoint construction. LiteLLM region selection is exercised by trait_read_uses_the_aws_region_from_its_operation_context; no vendor endpoint table is duplicated
test_prepare_request_explicit_bedrock_runtime_endpoint_param_still_wins	endpoint_overrides_replace_the_service_and_override_the_region
test_prepare_request_env_bedrock_runtime_endpoint_still_wins	endpoint_overrides_replace_the_service_and_override_the_region

tests/test_litellm/secret_managers/test_base_secret_manager.py

Python test	Rust coverage or boundary
test_raise_if_unsafe_secret_name_rejects_traversal_and_line_breaks	names_reject_path_traversal_and_control_characters
test_raise_if_unsafe_secret_name_allows_legitimate_aliases	names_allow_safe_values

tests/test_litellm/secret_managers/test_custom_secret_manager.py

Python test	Rust coverage or boundary
test_custom_secret_manager_initialization	Exercises the Python example subclass itself or Python default methods. Caller-authored Python implementations remain Python callbacks; resolver integration is covered by manager_strings_are_coerced_like_literal_eval
test_custom_secret_manager_sync_read	Exercises the Python example subclass itself or Python default methods. Caller-authored Python implementations remain Python callbacks; resolver integration is covered by manager_strings_are_coerced_like_literal_eval
test_custom_secret_manager_async_read	Exercises the Python example subclass itself or Python default methods. Caller-authored Python implementations remain Python callbacks; resolver integration is covered by manager_strings_are_coerced_like_literal_eval
test_custom_secret_manager_async_write	Exercises the Python example subclass itself or Python default methods. Caller-authored Python implementations remain Python callbacks; resolver integration is covered by manager_strings_are_coerced_like_literal_eval
test_custom_secret_manager_async_delete	Exercises the Python example subclass itself or Python default methods. Caller-authored Python implementations remain Python callbacks; resolver integration is covered by manager_strings_are_coerced_like_literal_eval
test_custom_secret_manager_integration_with_litellm	manager_strings_are_coerced_like_literal_eval
test_minimal_custom_secret_manager	Exercises the Python example subclass itself or Python default methods. Caller-authored Python implementations remain Python callbacks; resolver integration is covered by manager_strings_are_coerced_like_literal_eval

tests/test_litellm/secret_managers/test_cyberark_secret_manager.py

Python test	Rust coverage or boundary
test_sync_read_matches_parity_fixture	secret_names_use_python_quote_encoding
test_async_write_matches_parity_fixture	writes_match_python_parity_fixture
test_missing_credentials_raise_value_error	new_validates_credentials_before_license_and_configuration

tests/test_litellm/secret_managers/test_get_azure_ad_token_provider.py

Python test	Rust coverage or boundary
test_deployment_identity_reaches_workload_and_managed_identity_only	Credential-selection contract belongs to litellm-auth-azure, not a secrets crate
test_deployment_identity_survives_a_developer_only_token_credentials_setting	Credential-selection contract belongs to litellm-auth-azure, not a secrets crate
test_default_azure_credential_keeps_its_full_chain	Credential-selection contract belongs to litellm-auth-azure, not a secrets crate
test_deployment_identity_refuses_to_mint_a_token_for_a_configured_service_principal	Credential-selection contract belongs to litellm-auth-azure, not a secrets crate
test_deployment_identity_still_reaches_a_system_assigned_managed_identity	Credential-selection contract belongs to litellm-auth-azure, not a secrets crate
test_deployment_identity_keeps_the_user_assigned_identity_under_a_dev_only_setting	Credential-selection contract belongs to litellm-auth-azure, not a secrets crate
test_get_azure_ad_token_provider_client_secret_credential	Credential-selection contract belongs to litellm-auth-azure, not a secrets crate
test_get_azure_ad_token_provider_managed_identity_credential	Credential-selection contract belongs to litellm-auth-azure, not a secrets crate
test_get_azure_ad_token_provider_certificate_credential	Credential-selection contract belongs to litellm-auth-azure, not a secrets crate
test_get_azure_ad_token_provider_password_protected_certificate_credential	Credential-selection contract belongs to litellm-auth-azure, not a secrets crate
test_get_azure_ad_token_provider_default_azure_credential	Credential-selection contract belongs to litellm-auth-azure, not a secrets crate
test_get_azure_ad_token_provider_prefers_workload_identity_over_managed_identity	Credential-selection contract belongs to litellm-auth-azure, not a secrets crate
test_get_azure_ad_token_provider_defaults_to_default_azure_credential	Credential-selection contract belongs to litellm-auth-azure, not a secrets crate

tests/test_litellm/secret_managers/test_hashicorp_secret_manager.py

Python test	Rust coverage or boundary
test_sync_read_uses_login_namespace_for_approle_and_secret_namespace_for_url	login_and_secret_namespaces_follow_python_precedence
test_login_header_is_omitted_when_no_namespace_is_configured	login_and_secret_namespaces_follow_python_precedence
test_sync_read_per_secret_namespace_overrides_secret_namespace	operation_overrides_isolate_cached_targets_and_apply_to_writes_and_deletes
test_sync_read_caches_per_resolved_target	operation_overrides_isolate_cached_targets_and_apply_to_writes_and_deletes
test_sync_read_caches_per_data_key_for_the_same_secret_path	reads_cache_each_data_key_for_the_same_vault_path
test_async_delete_evicts_every_cached_field_of_the_secret_path	write_and_delete_invalidate_the_read_cache
test_async_read_uses_secret_namespace_and_login_namespace	login_and_secret_namespaces_follow_python_precedence
test_async_write_and_read_share_the_secret_namespace_target	write_and_delete_invalidate_the_read_cache
test_tls_login_uses_login_namespace	tls_login_posts_the_role_and_uses_the_client_identity
test_configuration_matches_native_parity_fixture	configuration_matches_python_parity_fixture

tests/test_litellm/secret_managers/test_secret_manager_handler.py

Python test	Rust coverage or boundary
test_azure_key_vault_matches_rust_parity_fixture	parity_fixture_matches_python_backend_contract

tests/test_litellm/secret_managers/test_secret_managers_main.py

Python test	Rust coverage or boundary
test_oidc_google_success	google_expiry_caps_cache_and_preserves_audience
test_oidc_google_cached	google_expiry_caps_cache_and_preserves_audience
test_oidc_google_cache_ttl_capped_by_token_exp	google_tokens_expire_at_the_python_cache_deadline
test_oidc_google_expired_token_not_cached	google_expiry_caps_cache_and_preserves_audience
test_oidc_google_long_lived_token_still_capped_at_default_ttl	google_tokens_expire_at_the_python_cache_deadline
test_oidc_google_non_jwt_token_keeps_default_ttl	google_tokens_expire_at_the_python_cache_deadline
test_oidc_google_failure	google_oidc_failures_are_not_cached_or_hidden_by_defaults
test_oidc_circleci_success	environment_sources_resolve_expected_value
test_oidc_circleci_failure	missing_oidc_environment_is_an_error
test_oidc_github_success	github_requests_are_authenticated_cached_and_revalidate_environment
test_oidc_github_missing_env	github_requests_are_authenticated_cached_and_revalidate_environment
test_oidc_azure_file_success	file_allowlist_resolves_symlinks_while_environment_paths_remain_explicit
test_oidc_azure_ad_token_success	azure_oidc_acquires_the_requested_scope_and_preserves_failures
test_oidc_file_success	file_allowlist_resolves_symlinks_while_environment_paths_remain_explicit
test_oidc_file_rejects_path_outside_allowlist	file_allowlist_resolves_symlinks_while_environment_paths_remain_explicit
test_oidc_file_rejects_relative_path	file_allowlist_resolves_symlinks_while_environment_paths_remain_explicit
test_oidc_env_success	environment_sources_resolve_expected_value
test_oidc_env_path_success	file_allowlist_resolves_symlinks_while_environment_paths_remain_explicit
test_unsupported_oidc_provider	invalid_references_fail_before_environment_lookup
test_normalize_nonempty_secret_str	normalization_matches_python_without_changing_embedded_whitespace
test_secret_manager_would_be_consulted_matches_get_secret	gating_prediction_matches_actual_lookup
test_secret_manager_would_be_consulted_is_false_without_a_client	prefix_is_removed_once_and_resolved_from_environment

tests/litellm_utils_tests/test_secret_manager.py

Python test	Rust coverage or boundary
test_aws_secret_manager	write_read_delete_preserves_the_complete_secret_string
test_oidc_google	google_expiry_caps_cache_and_preserves_audience
test_oidc_github	github_requests_are_authenticated_cached_and_revalidate_environment
test_oidc_circleci	environment_sources_resolve_expected_value
test_oidc_circleci_v2	environment_sources_resolve_expected_value
test_oidc_circleci_with_azure	Quarantined live Azure token exchange, outside secrets crates. CircleCI token retrieval is covered by environment_sources_resolve_expected_value
test_oidc_circle_v1_with_amazon	Quarantined live AWS token exchange, outside secrets crates. Token retrieval and STS forwarding are covered independently
test_oidc_env_variable	environment_sources_resolve_expected_value
test_oidc_file	file_allowlist_resolves_symlinks_while_environment_paths_remain_explicit
test_oidc_env_path	file_allowlist_resolves_symlinks_while_environment_paths_remain_explicit
test_google_secret_manager	successful_reads_use_auth_latest_version_and_cache_including_empty_values
test_google_secret_manager_read_in_memory	python_reads_reuse_cached_absence_until_expiry
test_should_read_secret_from_secret_manager	gating_prediction_matches_actual_lookup
test_get_secret_with_access_mode	gating_prediction_matches_actual_lookup
test_key_management_settings_defaults	config_preserves_defaults_nulls_and_serialized_names
test_key_management_settings_custom_values	config_preserves_defaults_nulls_and_serialized_names
test_async_write_secret_receives_description_and_tags	Proxy hook behavior stays in Python. Native write metadata is covered by trait_write_uses_typed_write_context
test_key_management_settings_serialization_roundtrip	config_preserves_defaults_nulls_and_serialized_names

tests/litellm_utils_tests/test_get_secret.py

Python test	Rust coverage or boundary
test_azure_kms	azure_handler_reads_missing_and_failed_secrets

tests/litellm_utils_tests/test_aws_secret_manager.py

Python test	Rust coverage or boundary
test_write_and_read_simple_secret	write_read_delete_preserves_the_complete_secret_string
test_write_and_read_json_secret	write_read_delete_preserves_the_complete_secret_string
test_read_nonexistent_secret	failed_read_returns_none_but_invalid_primary_json_is_an_error
test_primary_secret_functionality	primary_lookup_preserves_read_semantics
test_write_secret_with_description_and_tags	creation_passes_tags_and_kms_and_survives_replication_failure
test_secret_manager_with_iam_role_settings	configured_sts_credentials_sign_the_secret_request
test_secret_manager_with_cross_account_settings	configured_sts_credentials_sign_the_secret_request
test_secret_manager_with_irsa_settings	configured_sts_credentials_sign_the_secret_request
test_secret_manager_with_custom_sts_endpoint	configured_sts_credentials_sign_the_secret_request
test_secret_manager_with_aws_profile	configured_profile_credentials_override_static_environment_credentials
test_load_aws_secret_manager_with_settings	creation_replicates_only_to_configured_regions
test_end_to_end_iam_role_secret_write	Live AWS account test, not a unit test. Offline STS signing and secret writes are covered without account assumptions

tests/litellm_utils_tests/test_hashicorp.py

Python test	Rust coverage or boundary
test_hashicorp_secret_manager_get_secret	token_reads_use_vault_headers_and_cache_values
test_hashicorp_secret_manager_write_secret	write_and_delete_invalidate_the_read_cache
test_hashicorp_secret_manager_write_secret_with_team_overrides	operation_overrides_isolate_cached_targets_and_apply_to_writes_and_deletes
test_hashicorp_secret_manager_delete_secret	write_and_delete_invalidate_the_read_cache
test_hashicorp_secret_manager_delete_secret_with_team_overrides	operation_overrides_isolate_cached_targets_and_apply_to_writes_and_deletes
test_hashicorp_secret_manager_tls_cert_auth	tls_login_posts_the_role_and_uses_the_client_identity
test_hashicorp_secret_manager_approle_auth	approle_login_uses_namespace_and_reuses_the_token
test_hashicorp_custom_mount_and_prefix	namespace_mount_and_prefix_are_sanitized_in_the_url
test_hashicorp_get_url_rejects_path_traversal	no_auth_and_invalid_names_fail_without_requests
test_hashicorp_secret_manager_rotate_secret_different_names	rotation_applies_timeout_to_each_request
test_hashicorp_secret_manager_rotate_secret_same_name	same_name_rotation_keeps_the_replacement
test_hashicorp_secret_manager_rotate_secret_current_not_found	missing_old_or_new_value_stops_rotation_before_deletion
test_hashicorp_secret_manager_rotate_secret_write_fails	provider_failures_stop_rotation_before_retirement
test_hashicorp_secret_manager_rotate_secret_with_team_overrides	rotation_applies_timeout_to_each_request
test_hashicorp_secret_manager_rotate_secret_value_mismatch	a_different_replacement_never_deletes_the_current_secret

tests/litellm_utils_tests/test_cyberark.py

Python test	Rust coverage or boundary
test_cyberark_write_secret_rejects_yaml_injection	unsafe_names_fail_before_http_calls
test_cyberark_ensure_variable_exists_escapes_yaml_metacharacters	policy_writes_preserve_yaml_metacharacters_as_one_variable
test_cyberark_write_and_read_secret	writes_tolerate_policy_status_and_cache_value
test_cyberark_rotate_secret	rotation_stores_the_replacement_and_retains_other_aliases
test_cyberark_rotate_secret_with_new_alias	rotation_stores_the_replacement_and_retains_other_aliases

Public provider read boundary

test_public_aws_reads_preserve_coroutines_and_per_call_credentials verifies lazy coroutine execution, asyncio.create_task, positional and keyword calls, request payloads, and per-call credentials, region, and endpoint overrides. test_public_aws_primary_reads_ignore_operation_overrides_like_python retains Python's ignored primary-read overrides. Bootstrap keys bypass only synchronous reads, including native backend initialization

Real HTTP timeouts are swallowed by AWS reads because LiteLLM's standard HTTP handler raises litellm.Timeout; tests that inject httpx.TimeoutException bypass that wrapping. test_public_aws_read_timeouts_follow_the_python_http_handler compares both implementations against delayed responses

Vault reads retain nested overrides, Python string conversion, and cache isolation. CyberArk reuses authentication and preserves raw secret text in its cache. Python's shared cache JSON-decodes CyberArk values on subsequent reads, corrupting quoted strings and changing types. The native behavior intentionally fixes this corruption, with the Python difference shown in test_public_cyberark_reads_reuse_authentication_and_cached_values

Google's first missing-secret read raises, while a cached miss returns None. python_reads_reuse_cached_absence_until_expiry and python_cached_absence_expires_and_allows_recovery retain both outcomes

Public CyberArk mutation boundary

Public writes, deletes, and rotations retain the Python method signatures and coroutine entrypoints. Write and delete results preserve Python's status/message dictionaries. Unsupported deletion clears the shared native read cache without a provider request. Authentication and write HTTP failures preserve Python's messages and request counts, including the ignored initial authentication failure while ensuring a policy. Python-compatible reads and writes do not retry HTTP 401; native Rust retry policies remain unchanged

The bridge compares connection-refused errors against Python and builds HTTP status messages through HTTPX. Other transport failures and client-initialization timing still need a complete API audit; these checks do not establish full error parity

test_public_cyberark_writes_and_deletes_share_the_read_cache verifies real HTTP writes followed by sync and async cached reads and deletion invalidation. test_public_cyberark_write_errors_match_python_without_http_retries, test_public_cyberark_connection_errors_match_python, and test_cyberark_handler_errors_match_python_after_cached_authentication_is_denied compare error results against Python. Missing-extension selection remains covered for each mutation

Rotation preserves the documented fresh-read safeguard. Python's base rotation checks a cache populated by the write and does not compare the stored value, so a successful response can conceal a missing or incorrect replacement. test_public_cyberark_rotation_requires_a_fresh_matching_replacement rejects both cases and verifies the old cache remains intact. test_public_cyberark_rotation_stops_after_a_failed_write preserves the old value and returns the write error without further requests. Conjur retains the old provider alias because its deletion API is unsupported

Public Vault mutation boundary

Public Vault writes, deletes and rotation now use catalog selection. Their Python signatures and coroutine entrypoints stay unchanged. Native operations use the Vault SDK request types and authenticated client while retaining the complete response bytes for Python JSON conversion. This preserves additional response fields, key order and arbitrary-size integers. Python-compatible writes make one provider attempt; the existing native API keeps its CAS recovery behavior

test_public_vault_writes_preserve_complete_responses_and_request_fields checks the response envelope, nested operation settings, payload and ignored tags. test_public_vault_mutation_http_errors_match_python_without_retry compares write/delete error dictionaries, including namespace URLs and exact request counts. Rotation tests compare current-secret failures, ordered request paths, write failures, failed verification, mismatched values, malformed verification shapes, same-name updates and best-effort old-alias deletion. A successful HTTP response containing status: error stops rotation and returns the original response. Verification fields remain raw JSON until Python error conversion, preserving large integers, nested values and the distinction between integer and floating-point type errors. Unsupported extension selection is checked separately for write, delete and rotate

test_public_vault_mutation_timeouts_match_python compares operation-specific timeout messages. The elapsed duration in a POST error is measured independently, so the test checks its structure and lower bound rather than requiring two independent requests to have identical elapsed time. Phase-specific connect/read/write/pool deadlines and cached Python transport configuration still need broader parity checks

Native writes retain two documented correctness safeguards. Python's async_write_secret does not invalidate the read cache, so a later read can return a value from before a successful write. test_public_native_vault_write_invalidates_stale_cached_values verifies that the native public API returns the updated provider value. Python also overwrites the secret when both the data key and description field are named description. test_public_native_vault_write_rejects_description_overwriting_the_secret rejects that collision before any request. These corrections do not change Python

The raw response path does not yet establish complete Vault API parity. SDK authentication payload parsing, argument conversion, connection retry behavior, non-HTTP transport errors, nonstandard JSON encodings during rotation and configuration changes during rotation remain under audit. The catalog stays Python-only

The Vault boundary update passed 317 provider and bridge tests, including 191 bridge cases. With the extension unavailable, 35 passed and 156 native-only cases skipped. Seven targeted mutations compiled and failed their regression tests: stripped response envelopes, ignored HTTP 400 failures, skipped replacement equality, skipped current-secret checks, stale write caches, fatal old-secret deletion failures and ignored write-error responses. The restored extension passed again. Five additional differential cases reproduced lossy large-integer error conversion before the raw-JSON correction and pass afterward. Live public native reads, writes, deletes and same-name/new-alias rotations passed against local Vault 1.20 with token and AppRole authentication, with Python HTTP construction forbidden